A219651 - OEIS

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A219651

a(n) = n minus (sum of digits in factorial base expansion of n).

0, 0, 1, 1, 2, 2, 5, 5, 6, 6, 7, 7, 10, 10, 11, 11, 12, 12, 15, 15, 16, 16, 17, 17, 23, 23, 24, 24, 25, 25, 28, 28, 29, 29, 30, 30, 33, 33, 34, 34, 35, 35, 38, 38, 39, 39, 40, 40, 46, 46, 47, 47, 48, 48, 51, 51, 52, 52, 53, 53, 56, 56, 57, 57, 58, 58, 61, 61

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,5

COMMENTS

See A007623 for the factorial base number system representation.

LINKS

A. Karttunen, Table of n, a(n) for n = 0..10080

FORMULA

a(n) = n - A034968(n).

MATHEMATICA

(* First run program for A007623 to define factBaseIntDs *) Table[n - Plus@@factBaseIntDs[n], {n, 0, 99}] (* Alonso del Arte, Nov 25 2012 *)

PROG